Pie-making machine



Aug. 10 1926.

D. W. SMITH PIE MAKING MACHINE Filed Oct. 14, 1925 5 Sheets-Sheet l .IIIIFI @l ilfl I Aug. 10 1926.

- D. w: SMITH PIE MAKING MACHINE Filed 00x14.

1925 5 SheesSfieet 4 w 4 W 2 9 L W6 A, w 54 1 W .0 M y ,0 a w B Patented Aug. 10, 1926.

rates-r Dennis w. stiI rn. or wILIvrn'r'TE; l LIilNOl s. ssIGiion .To oonnoniun manurao'run- Iue COMPANY, or CT-IIGAGO, ILLINOIS, A CORPORATION or ILLInoIs.

PIE-MAKING MACHINE.

This invention relates to pie making machines and more particularly to improve ments in the pie trimmingand scrap removing devices and the like insuch machines wherein various operations are performed on each ofa continuously moving train ofpie supports.

Heretofore the various operating devices stationed along the-path of the supports have 7 been independently driven in synchronism with each moving holder. Since the conveyer belt or driving means upon which the holders are mounted is of great length it is subject to stretching and variations in the relative distances between supports. Also considerable looseness is requisite in any type of belt. Therefore, accurate alignment and timing of independently driven operating devices has been diflicult to accomplish. a

The chief characteristics of this inven tion are that the operationperforming deices are connected directlytoeachsupport and thereby moved by the support the de sired length of travel in accurate correlation; and the moving elements of said device are actuated by virtue of said connection and thereby more accurate timing is secured.

Also in former trimming devices the forms were set over the pie and the form and. pie rotated with the trimming element held in non-rotative relation. Such devices are unsuccessful in producing pies which bake properly and diiliculty has been met in removing the trimmings from the carrier plate where the scrap remover and the trimmer were combined. Therefore the main objects of this device, are to more accurately time and align the operating deices with the traveling pies, to produce improved means for trimming the pie which properlyseals the edges of thecrusts, and to provide improved means for removing the scrap. b

An illustrative embodiment of my invention isshown in the accompanying drawings, in which F igure. 1 is, a plan view of the finishing end of the pie machine.

Fig. 2 is an elevation of Fg. 1.

Fig. .3 is a view of a portion of Fig. 1. showing an added feature.

Fig. l is a section on line H of Fig. 1.

from the right side the carriage in changed position.

Serial No. 62,378.

Fig; 5 is a section'on line 5'5 of Fig. 1.

F 6 is. a section on line 6.6..of Fig. 4;

F ig. 7 is a viewofa portion of Fig. 1 with Fig; 8 isan elevation of:a portion of Fig. 1 looking from the left side.

Fig. 9 is a section on-lme 9.-9 of Fig. 2. Fig. 10 man enlarged View of the end of the scrap remover support arm shown in Fig.1. I

Fig. 11 is taken on line 1111 of Fig. 10. Fig; .12 is taken on line l212 of Fig. 11. In the pie machine illustrated in the drawings, the pie holders 14. are carried in thesame horizontal plane along thesides and around the ends ofthe elongated machine frame 15 upon-which are mounted the various operation performing devices. As the holders are carried along pie tins are inserted in the holders 14 and the piesare formed therein. rolled out and dropped over the whole.

The untrimmed pies are traveling toward the-observer along the right sideof the ma chine as viewed in Fig. 1. Thepies move past the trimmer ltl which trims the pie to shape leaving the trimmings or scrap lying on the discs 17 upon which the holders 1% are-mounted. Then the pies are lifted out of the holders-14L, moved aside and ejected from the machine by the-fender 18 and the empty. carriers move around to the scrap remover 19 which scrapes the dough off the disc-17 and makes the carriers ready for receiving new pies, The discs 1? are mounted on the vertical posts 20which are rotatably supported in the links 21 and forks 2-2-of the conveyer chain 23. Secured on-the sides of the link members 21 are rollers 24 which ride on the rails 25 and support the carriers at the sides of the machine,'the rails 25 being suspended from the frame 15. For holding the posts 20 Irom lateral movement. the lower part of the fork member 22 fits closely between the rails 25, and square cams 26 are attached on the post 20 to hold the pie from rotating when in relation with-the trimmer 16 by engaging the stationary cam rails 27. The gear 28 keyed on the lower end of the post 2(3 is provided to rotate the pie'support when in relation with the scrap remover 19 by engaging with the stationary rack 29 which is secured to one of the rails 25 adjacent the scraper station.

Then the upper crust is At the ends of'the machine the conveyer belt, formed as described is supported and driven by the large horizontally mounted sprocket wheels and the portions of the belt on either side of the machine are moving in opposite directions. herefore the carriage 31 is reciprocated in predetermined positions by being attached to each succeeding carrier element at first one side and then the other. The carriage 31 is provided with four rectangularly spaced wheels 32 which run between the two pairs of vertically spaced rails 33 of the superstructure 3% which is bolted on the frame 15. Suspended from the carriage 31 by the depending arms 35 is a shuttle bar or transversely slidable ram 36 having end plates 37 which are alternately engaged with the lugs 38 which are secured in the upper member of the forks :22 of the oppositely moving carrier elements. Ateach end of the travel determined for the carriage a cam 39 is mounted on either side of the frame 15 in position to engage corresponding rollers 36' on the bar 38 to withdraw the end plate 3? from engagement with the lug 38 on the carrier on the opposite side of the machine and shift the bar so that the corresponding end plate is in position to be engaged by the lug on the next pie carrier on the adjacent side of the machine. Therefore, in effect, the carriage 31 is attached to each carrier element.

Sn the right hand side (Fig. l) of the carriage is mounted the 'rimmer element 16 supported by the carriage bracket 10, and the scrap removing device 19 is supported by the bracket 41-1 extending from the left side of the carriage 31.

In the trimming element the circular die member 42 is fastened to the lower shouldered end of the vertical shaft 43 which is slidably mounted in the oppositely slotted hub portion 45 of the support bracket 40. The frusto-conical trimming rollers 46 are oppositely mounted on the trimmer head 17 keyed on the sleeve 48 which is rotatable on the shaft 43 with a slight amount of play between the lo ver end of sleeve it and the hub of the member l2 which supports the sleeve 48.

The gear is also keyed on the sleeve 48 and meshes with the gear 50 wlich is rotatably supported by the arm 51 carried by the sleeve 48. The sleeve 48 turns in the arm 51 and holds the arm between the hub of the gear 49 and a set collar 52. Secured in the bore of the gear 50 is a jack shaft which is guided through the sup port portion 5a of the bracket 40 and in the upper bracket extension arm 54:. A clutch collar 55 is pinned on the shaft and cooperates with a clutch 56 in the upper end of the pinion 57 which is loosely mounted on the jack shaft 53 and rests on the bracket portion 54 in engagement with the stationary rack 58 secured to the extending por tion 49 of the superstructure 34.

Also supported in the superstructure 34: are the driving cam plates 60 and lifting cams 61 suitably arranged on either side of the hub 15, to drive the cam rollers 61 down when the carriage is moving with the pie and raise the rollers 62 when the carriage is traveling reversely.

As shown in F 5 the cam rollers 61 are mounted on the ends of the short bar 62 which extends through slotted portions 63 and (S1- in the sleeve 44 and the shaft 43 respectively and is pressed towards the bottom of the shaft slot 6% by the spring 65. The sleeve a l with the members supported thereby is drawn upwardly by the spring 66 which attaches to the top of the sleeve l-l and to the spring support bar 67 bolted to the bracket hub 45.

To position the cam rollers 61 to be en gaged by the lower edges of the cam plates after the rollers have traveled back over the upper edges, the upward movement of the sleeve M is limited by the stop shoulder (38 on the sleeve contacting with the lower end of the relatively stationary hub 45. In moving over the upper end of the cams 60 the spring 'is compressed so that when the rollers 61 are moved clear of the cam they are forced down below the cam points. Thus a carrier having an untrimmed pie picks up the carriage with the trimming he d T and die 42 in raised position but aligned with the pie holder and the clutch members 55 and 56 disengaged. During the subsequentcorrelate-d movement of the carriage and pie support the sleeve with the concentric shaft l3 and the shaft 53 carried at the side are lowered moving the clutch 55 into engagement for rotating the trimmer head 17, positioning the die member 4:2 on top of the pie and engaging the trimming rollers with the periphery of the pie holders M. The overlapping portions of the crusts are severed and trimmed edges of the crusts are bound together by the pressure from the relatively angular surfaces of the rollers, and the crust trimmings drop onto the disc 17.

N ear the end of the correlated movement the sleeve i4: with the die 42 and trimming head 4L7, is raised by the cam 61. The carriage is disconnected and the plunger 36 positioned to be engaged by the next holder moving on the left or opposite side of the machine which then picks up the carriage with the scraper blade in close relation with the surface of the disc 17 as shown in Fig. *4, and the gear 28 meshing with the station ary rack 29 for rotating the disc.

The scraper blade is mounted as follows: The extending end of the scraper bracket &1 is slotted for engaging the flattened sides of the stud 70 thereby preventing the stud'from rotatingso that astop against inward rotation of the scraper blade. 71 may be provided by the lug 72 on the lower head' 73ofthebolt or. stud 70. The lug 72' contacts the pin-74: in the block 75 which is rotatably mounted on thebolt 7G, and the-scraper blade is secured. to the block- 75 by means of the plate 76. The block'75- is supported byi'the bolt head 73 and the' bolt isclamped in adjusted position by the nut 77 drawing up on the-tube 7 8 p'laced'betvveen the stud shoulder? 9 and the unden side oif the arm e1. To yieldingly hold, the blade 71 against rotating awa-y 'from the stop, the coil spring T9 is fastened totheouterendlot' the blades and to thedepending arm of thespring support SO which is clampedmposition under the nut-T7:

The operation per-forming elements are very accurately aligned -with every pie holder in-th'e train because they are attached to and driven; by each carrier element during the cooperative relation therewith. The-- trimming roller rides evenly around theedgesof the holder and also the wear of-the driving member is reducedby providing the ratchet-- clutch members and. 56 so that the trimming head t? is only driven'in'oneidirection andall'owed-to stop rotating during themeturn or inoperative perioclo'ii-travel-of -the carriage.

No'attempt is made to scrape; the trimmings from the disc 17 by any ot the same mechanism that is used'for the trimming process. since the dough sticks to theplate and isdiilicult to remove. riccordingly the scraping process has been disassociated with the trimming process. As a result the discs- 1Z may be, rotated at ahigh rate of speed-underclose adjustment of the scraper blade 71 with no danger-0t causing damage-tothe pie as may lie-done when'the scrap is removed 011 a plate'with the pie stillin theholden The carriage '15 is adaptable'for' carrying similar operating elements to those shown, being reciprecated as described by being alternatelyv attached to oppositely moving portions 'oftlie conveyor belt.

To holdthe rotating trimming head 47 in an inoperative positiona cam lever 81 is pivotedon'the bracket-b11345 as shownin Fig. 3, and the cam fingers 82 and 81- are engaged. withrand hold the rollers 61 in raised position. Then the trimming rollers 83 for square pies, indicated in dotted lines in Fig. 2, may be set in place rendering the same machine adaptable for making either round or square pies.

While but one illustrative embodiment of each of the features of this invention has been shown many variations and omissions may be made without departing from the spirit of the invention.

Lclaim:

1. In. combination in a pie making ma--- chine adapted. to formpies on. a conveyer having oppositely moving. portions, pie tin supports. on, said convey-er, a carriage for pielmakingoperation per-forming elements mountechbetween,said portions, and means for alternately attaching thecarriage to each succeeding pie'carrier in the oppositelymoving portions 0t said conveyer.

2: In: combinationv a pie making machine adapted tofor=mpies on continuously moving conveyer'having, oppositely moving pore tions, a, carriage for operation performing ary cams oppositely arrangedforengaging the bar to project.theiendsiofi'thebar alternately into the path of each. succeeding carrier lug in the oppositelymoving. portions o'f-Lthe-train of carriers.

4. In a pieanakingmachine. havingmoving pie'carriers, a carriageforsupporting operation performing elements which is adapted to beatt'achedto eachsucceeding pie carrier for cooperation therewith, a trimming element rotatably mounted on the carriage in operative relation to the. pie carrier-to which said carriage is attached, and means for lowering the trimmingelement into engagement with the pie.

5. In, a pie making naachine having moving pie carriers, a carriage for supporting operation performing elements which is adapted-to be attached to-each succeeding pie carrier for cooperation therewith, a trimming element rotatably mounted-on the carriage in operative relation to the pie carrier towhich. saidcarriage is attached, means forlowering the trimming element into engagement-With the pie. and aratchet operated I connection for rotating the trimmer head in one direction.

-6. In combination in a pie making machine, a rotatably mounted pie carrier mounted on a moving support, means for holding the carrier from turning, a movable carriage adapted to be attached to the pie carrier, a vertical member slidable in the said carriage in alignment with the pie during the period of attachment, a die mounted on the slidable member, means for lowering the said member to engage the die and means for restoring the carriage and said parts mounted thereon to starting position wh n disengaged from the carrier.

'4'. In combination in a pie making machine a moving train of rotatably mounted pie carriers, means for holding the carriers from turning, a movable carriage adapted to be attached to each succeeding pie carrier, and an operation performing element slidable in the carriage and adapted to be moved into operative relation with the pie during the period of attachment.

8. In combination in a pie making machine a moving train of rotatably mounted pie carriers, means for holding the carriers from turning, movable carriage adapted to be attached to each succeeding pie carrier, a yieldingly supported pie trimmer rotatably mounted in the carriage, a stationary cam for moving the pie trimmer into engagement with the pie during the period of attachment and means for simultaneously rotating the pie trimmer, and an operation performing element slidable in the carriage and adapted to be moved into operative relation with the pie during the period of attachment.

9. In combination in a pie making machine a moving train of rotatably mounted pie carriers, means for holding the carriers from turning, a movable carriage adapted to be attached to each succeeding pie carrier, a yieldingly supported pie trimmer rotatably mounted in the carriage, a station ary cam for moving the pie trimmer into engagement with the pie during the period of attachment and a stationary rack adapted to rotate the said gear and rotate the pie trimmer during said attachment.

10. in combination in a pie making machine a moving train or rotatably mounted pie carriers, means :tor holding the carriers "from tnrning, a movable carriage adapted to be attached to each succeeding pie carrier, a sleeve yieldingly supported in the carriage, a shaft yieldingly held in the sleeve having cam rollers, a die element on said shaft and a stationary cam for lowering the sleeve to engage the die element With the pie.

11. In combination in a pie making machine a moving train or rotatably mounted pie carriers, means for holding the carriers from turning, a movable carriage adapted to be attached to each succeeding pie carricr, a sleeve yieldingly supported, in the carriage, a shaft yieldingly held in the sleeve having cam rollers, a ,pie trimming element rotatable on the shaft and having P rotating means including a' gear and a clutch, a stationary rack meshing with the gear, and a stationary cam adapted'to ensaid cam rollers. to lower the trimming element and engage the said clutch and when the carriage is attached to a pie carrier.

12. In a pie making machine adapted to form pies on a continuously moving conveyor having oppositely moving portions, a

carriage mounted between and adapted to V riage, a stationary member for holding the pie carriers from rotating, a stationary rack for rotating the pie trimmer, and at the opposite side a scrap remover mounted on the carriage and a second stationary rack tor rotating the pie carrier.

in combination in a pie making machine, a rotatably mounted moving pie sup port having a gear fixed thereon, a movable carriage adapted to be attached to said support, a scraper element on said carriage and a stationary rack adapted to engage said to rotate the pie support when said carriage is attached.

15. in combination in a pie making machine, a rotatably mounted moving pie support having a gear fixed thereon, a movable carriage adapted to be attached to said support, a scraper element on said carriage, and a stationary rack adapted to engage said gear to rotate the piesupport when said (7211'? riage is attached, and means for yieldingly holding the scraper element from rotating with the pie support. 7

Signed at Chicago this 8rd day of October, 1925.

DENNIS VI. SMITH. 

